Effect of SiC whiskers on the anti-oxidation properties of Yb2Si2O7/mullite/SiC tri-layer environmental barrier coating for CMCs

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成果类型：

期刊论文

作者：

Pan, Ling;Chen, Pengju;Xiao, Peng;He, Ling;Zhou, Wei;...

通讯作者：

Chen, P.;Li, Y.

作者机构：

[He, Ling; Xiao, Peng; Pan, Ling; Li, Yang] Cent South Univ, State Key Lab Powder Met, Changsha, Peoples R China.

[Chen, Pengju] Univ South China, Sch Nucl Sci & Technol, Hengyang, Peoples R China.

[Zhou, Wei] Hunan Univ Technol, Coll Met & Mat Engn, Zhuzhou, Peoples R China.

[Chen, Pengju; Li, Yang] Cent South Univ, Powder Met Res Inst, 932 Yuelu Ave,Lushan South Rd, Changsha 410083, Peoples R China.

通讯机构：

[Li, Y.] S

[Chen, P.] P

Powder Metallurgy Research Institute, No.932 Yuelu Avenue, Lushan South road, China

State Key Laboratory of Powder Metallurgy, China

语种：

英文

关键词：

anti-oxidation;coating;mullite;SiC whisker;β-Yb2Si2O7

期刊：

International Journal of Applied Ceramic Technology

ISSN：

1546-542X

年：

2023

卷：

期：

页码：

1740-1752

DOI：

10.1111/ijac.14325

基金类别：

This work was funded by the National Key R&D Program of China (Grant nos. 2021YFB3703800 and 2021YFB3703802) and National Natural Science Foundation of China (Grant no. 52102122).

机构署名：

本校为其他机构

院系归属：

核科学技术学院

摘要：

The mullite and ytterbium disilicate (beta-Yb2Si2O7) powders as starting materials for the Yb2Si2O7/mullite/SiC tri-layer coating are synthesized by a sol-gel method. The effect of SiC whiskers on the anti-oxidation properties of Yb2Si2O7/mullite/SiC tri-layer coating for C/SiC composites in the air environment is deeply studied. Results show that the formation temperature and complete transition temperature of mullite were 800-1000 and 1300 & DEG;C, respectively. Yb2SiO5, alpha-Yb2Si2O7, and beta-Yb2Si2O7 were gradually formed between 800 and 1000?, and Yb2SiO5 and alpha-Yb2Si2O7 were complet...

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Effect of SiC whiskers on the anti-oxidation properties of Yb2Si2O7/mullite/SiC tri-layer environmental barrier coating for CMCs

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